« previous next »
« previous next »
 

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Kohlberg's Stages of Moral Development Kohlberg's Stages of Moral Development
Among the health benefits of marriage is a longer life. Among the health benefits of marriage is a longer life.
Types of cellular receptors: (a) Drug binds to the receptor opening channel. (b) Drug binds to the ... Types of cellular receptors: (a) Drug binds to the receptor opening channel. (b) Drug binds to the ...
Types of Hypersensitivities Types of Hypersensitivities
Types of Radiation Types of Radiation
Humor (Fluid Types) Humor (Fluid Types)
Video: Vascular tissues in a corn stem and a buttercup root

For a complete list of videos, visit our video library